Solved

US Robotics

Posted on 1998-07-20
9
249 Views
Last Modified: 2013-12-27
When I first turn on my external sportster 33.6 modem, the TR and CS lights flash and just keep flashing. It happens about once every second or two. It was working fine until last night.

Does this mean the modem is fried?
0
Comment
Question by:flfmdll
9 Comments
 

Expert Comment

by:febalci
Comment Utility
Connect to the COM port that your modem is attached to, via HyperTerminal. Then write AT&F1. IF that does not work try ATZ3.
0
 

Author Comment

by:flfmdll
Comment Utility
I did try using the dip switch in the back to reset to factory defaults. If I did it right, that had no effect. I'll give this a try and get back with you. Thanks.

0
 
LVL 9

Expert Comment

by:rmarotta
Comment Utility
Something to consider:
Resetting the dip switches will probably then cause the modem to be unrecognized by the computer.
If it won't respond using the default switch settings, go back to the last settings that worked and try the AT&F1 command.
Regards,
Ralph

0
 

Author Comment

by:flfmdll
Comment Utility
Ralph, just so you know, I only reset it via the dip switch after the lights started flashing. Also, the lights the flash whether or not it is connected to the computer (RS232 cable).
0
Zoho SalesIQ

Hassle-free live chat software re-imagined for business growth. 2 users, always free.

 
LVL 9

Expert Comment

by:rmarotta
Comment Utility
Check your documentation for the modem.  Perhaps the flashing LEDs are indicating some type of error code.
Ralph

0
 

Author Comment

by:flfmdll
Comment Utility
I tried looking at the documentation. I don't see anything about flashing lights that does NOT relate to data being transferred. I know there is no data being transferred.

By the way, the modem is at home. I'm at work. So I can't try the software reset until I get home.

But thanks,
David
0
 
LVL 9

Expert Comment

by:rmarotta
Comment Utility
Let us know what you find........
Ralph

0
 
LVL 1

Expert Comment

by:johncook
Comment Utility
There is a high probability that the timed flashing of the modem lights indicates a failure code... or at the very least a modem failure that in-turn creates a very confused modem.
The TR light indicates, in a working modem, Data terminal ready..that is..the computer has set this handshake line to indicate it is ready for a data transfer.
The CR light is the Clear to send handshake signal.

I tied, in vain, to search for Modem light error codes for the USR. If your modem is still under warrenty I would suggest contacting the USR support hotline(847)982-5151.

Good Luck,

John C. Cook
0
 
LVL 6

Accepted Solution

by:
joe_massimino earned 30 total points
Comment Utility
Does this modem still work to connect as usual?  If not, it is broke, and when you call USR for service they will tell you what the flashing means.  If the modem does connect fine, then you could issue a command to reset the modem to the factory configuration.  
Some modems, USR included, flash one LED to indicate the modem is set to FAX mode. Two flashing LEDS are possible also.
I imagine you can solve this very easily by answering my question. If the modem does not operate, and issuing a factory reset does not help, the next step would be to check you com port on another serial device, (another modem?) If the com port checks good it's time to contact USR if you want to persue getting it repaired.
0

Featured Post

How to run any project with ease

Manage projects of all sizes how you want. Great for personal to-do lists, project milestones, team priorities and launch plans.
- Combine task lists, docs, spreadsheets, and chat in one
- View and edit from mobile/offline
- Cut down on emails

Join & Write a Comment

In this tutorial I will show you with short command examples how to obtain a packet footprint of all traffic flowing thru your Juniper device running ScreenOS. I do not know the exact firmware requirement, but I think the fprofile command is availab…
#Citrix #Citrix Netscaler #HTTP Compression #Load Balance
Get a first impression of how PRTG looks and learn how it works.   This video is a short introduction to PRTG, as an initial overview or as a quick start for new PRTG users.
Access reports are powerful and flexible. Learn how to create a query and then a grouped report using the wizard. Modify the report design after the wizard is done to make it look better. There will be another video to explain how to put the final p…

772 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

12 Experts available now in Live!

Get 1:1 Help Now